Communications: radio wave antennas – Antennas – Wave guide type
Reexamination Certificate
2007-05-29
2008-09-09
Chen, Shih-Chao (Department: 2821)
Communications: radio wave antennas
Antennas
Wave guide type
C343S776000
Reexamination Certificate
active
07423603
ABSTRACT:
A method and apparatus for stacked waveguide horns using dual polarity feeds oriented in quadrature have been disclosed.
REFERENCES:
patent: 2954557 (1960-01-01), Yang
patent: 4686491 (1987-08-01), Howard
patent: 6211750 (2001-04-01), Gould
patent: 6452561 (2002-09-01), West et al.
patent: 6778146 (2004-08-01), Nakagawa et al.
Chen Shih-Chao
Heimlich Law
Heimlich, Esq. Alan
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